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Electromagnetic mechanism and circuit breaker

An electromagnetic mechanism and circuit breaker technology, applied in the electrical field, can solve the problems of large space occupation and disadvantageous miniaturization design of circuit breakers.

Pending Publication Date: 2021-07-16
SHANGHAI LIANGXIN ELECTRICAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing above-mentioned electromagnetic mechanism has a large space occupation due to the coil, which is not conducive to the miniaturization design of the circuit breaker.

Method used

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  • Electromagnetic mechanism and circuit breaker
  • Electromagnetic mechanism and circuit breaker
  • Electromagnetic mechanism and circuit breaker

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Embodiment Construction

[0027] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. The components of the embodiments of the invention generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations.

[0028] Accordingly, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art wi...

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Abstract

The invention provides an electromagnetic mechanism and a circuit breaker, and belongs to the technical field of electrics. The electromagnetic mechanism is used for driving a tripping execution piece of a circuit breaker tripping mechanism and comprises a current-conducting plate, an annular magnet yoke, a movable iron core and an elastic piece, the annular magnet yoke is arranged on the current-conducting plate in a sleeving mode, a trapezoidal notch opposite to one plate face of the current-conducting plate is formed in the annular magnet yoke, the movable iron core is located in the trapezoidal notch, and the movable iron core and the annular magnet yoke can relatively slide in the first direction; the first direction is the convergence direction of the two waists of the trapezoidal notch and is parallel to the plate surface of the conductive plate; and the elastic piece is used for applying resistance when the movable iron core and the annular magnet yoke approach each other. According to the electromagnetic mechanism and the circuit breaker, a coil assembly is omitted, the tripping execution piece is driven through relative sliding between the movable iron core and the annular magnet yoke, the overall structure is arranged in a flat mode, occupied space is small, and miniaturization design of the circuit breaker is facilitated.

Description

technical field [0001] The invention relates to the field of electrical technology, in particular to an electromagnetic mechanism and a circuit breaker. Background technique [0002] In people's daily electricity consumption, in order to be able to break the normal current of the circuit and automatically break the abnormal current of the circuit, a circuit breaker is usually connected and set in the circuit. [0003] At present, the components in the circuit breaker that realize the function of automatically breaking the abnormal current are the trip unit and the trip mechanism matched with the trip unit, wherein the trip unit can adopt an electromagnetic mechanism or a thermal trip mechanism. Generally, the electromagnetic mechanism is composed of an iron core and a coil assembly sleeved on the iron core. The magnetic force generated by the coil assembly connected to the current is used to push the iron core to move so that the iron core is close to and magnetically attrac...

Claims

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Application Information

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IPC IPC(8): H01H71/10H01H71/02
CPCH01H71/02H01H71/0264H01H71/10
Inventor 彭琼李强常杨
Owner SHANGHAI LIANGXIN ELECTRICAL
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